MESON Chess Problem Database
Problem Display
PID: 170899 (4B1q1/4P1p1/p1R5/1p1k3r/5pR1/6b1/3NQ2n/BbK5 w - - 0 1)
Hoffmann, Bruno
1st HM., Problemisten, 1950
#2
8 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qe6
- 2.Qxe6#
- 1...Qh7
- 2.Qe6#
- 1...Qxe8
- 2.Qe6#
- 1...Qf8
- 2.Qe6#
- 1...Qh8
- 2.Qe6#
- 1...Rh3
- 2.Qe5#
- 1...Rh4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rh6
- 2.Qe5#
- 1...Rh7
- 2.Qe5#
- 1...Rh8
- 2.Qe5#
- 1...Ba2
- 2.Qd3#
- 2.Qe4#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qe5#
- 1...f3
- 2.Rd4#
- 1...b4
- 2.Qc4#
- 1...a5
- 2.Qxb5#
- 1...g5
- 2.Qe5#
- 1...Qe6
- Tries
- 1.Kxb1?
- threat
- 2.Qd3#
- 2.Qe4#
- 1...Qxe8
- 2.Qe4#
- 2.Qe6#
- 1...Qe6
- 2.Qd3#
- 2.Qxe6#
- 1...Re5
- 2.Qd3#
- 2.Qxe5#
- 1...Bf2
- 2.Qe4#
- 1...Sf3
- 2.Qxf3#
- 2.Qe4#
- 1...Qh7+!
- threat
- 1.Sxb1?
- threat
- 2.Qd3#
- 1...Qxe8
- 2.Qe6#
- 1...Qh7
- 2.Qe6#
- 1...Sf3
- 2.Qxf3#
- 1...Bf2!
- threat
- 1.Sc4?
- threat
- 2.Sb6#
- 1...Qxe8
- 2.Qe6#
- 1...bxc4
- 2.Qxc4#
- 1...Bf2!
- threat
- 1.Rg5+?
- 1...Bf5
- 2.Qd3#
- 2.Qe4#
- 2.Qe5#
- 1...Rxg5!
- 1...Bf5
- 1.Qf3+?
- 1...Be4
- 2.Qxe4#
- 2.Qb3#
- 1...Sxf3!
- 1...Be4
- 1.Qf2?
- threat
- 2.Qd4#
- 2.Qc5#
- 1...Qxe8
- 2.Qc5#
- 1...Sf3
- 2.Qc5#
- 1...Bxf2!
- threat
- 1.Qe3?
- threat
- 2.Qd4#
- 2.Qc5#
- 2.Qb3#
- 1...Qxe8
- 2.Qc5#
- 2.Qe6#
- 1...Bf2
- 2.Qb3#
- 1...Ba2
- 2.Qd4#
- 2.Qc5#
- 2.Qd3#
- 2.Qe4#
- 1...Bc2
- 2.Qd4#
- 2.Qc5#
- 1...Bd3
- 2.Qd4#
- 2.Qc5#
- 2.Qxd3#
- 1...Sf3
- 2.Qc5#
- 2.Qb3#
- 1...fxe3!
- threat
- 1.Kxb1?
- Keys
- 1.Se4!
- threat
- 2.Rd6#
- 1...Bxe4
- 2.Qa2#
- 1...Qe6
- 2.Rc5#
- 1...Rh6
- 2.Rg5#
- 1...Bd3
- 2.Qxd3#
- 1...f3
- 2.Sc3#
- threat
- 1.Se4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 13
- Sets
- Q(j);N_GUARD::QAB1(D),XQ(j)
- Q(j);N_GUARD::QAB1(D)
- Q(j);N_GUARD,XB(H)::QAB1(D)
- R(g);N_GUARD::QAR1(D)
- R(g);N_GUARD::QAR1(D),XR(g)
- B(a);N_GUARD::QAR2(D),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(a);S_CUTR(g)::QAR1(D)
- P(d);OGATE::R1(E)
- P(e);N_GUARD::QAB1(D)
- P(h);N_GUARD::QAR2(D),XP(e)
- P(i);S_CUTR(g)::QAR1(D)
- Tries
- Try
- K(B);P-FLIGHT,XB(a)
- Threat
- DUALS(2)
- Vars
- B(c);::QAB1(D)
- Refutation
- Q(j);CHECK
- Try
- S(C);XB(a)
- Threat
- QAR2(D)
- Vars
- Q(j);N_GUARD,XB(H)::QAB1(D)
- Q(j);N_GUARD::QAB1(D)
- S(b);N_GUARD::QAB(D),XS(b)
- Refutation
- B(c);
- Try
- S(C);
- Threat
- S(C)
- Vars
- Q(j);N_GUARD,XB(H)::QAB1(D)
- P(e);OGATE,XS(C)::QAB1(D),XP(e)
- Refutation
- B(c);
- Try
- R(E);CHECK
- Refutation
- R(g);XR(E)
- Try
- Q(D);CHECK
- Refutation
- S(b);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- Q(j);XB(H)::QAR1(D)
- S(b);::QAR1(D)
- Refutation
- B(c);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- B(c);::QAB(D)
- Refutation
- P(d);XQ(D)
- Try
- Actual
- S(C);
- Threat
- R1(F)
- Vars
- B(a);N_GUARD,SBLOCK,XS(C)::QAB(D)
- Q(j);SBLOCK::R1(F)
- R(g);N_GUARD::R(E)
- B(a);N_GUARD::QAR2(D),XB(a)
- P(d);::S(C)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).